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ALSA: hda - Disable widget power-save for VIA codecs 

The widget power-save that was enabled in 4.1 kernel seems resulting
in the silent output on VIA codecs by some reason.  Some widgets get
wrong power states.

As a quick fix, turn this flag off while keeping power_down_unused
flag.  This will bring back to the state of 4.0.x.

Fixes: 688b12cc3c ('ALSA: hda - Use the new power control for VIA codecs')
Reported-and-tested-by: Harald Dunkel <harri@afaics.de>
Cc: <stable@vger.kernel.org> # v4.1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2015-06-25 08:48:54 +02:00
parent ec56af67a1
commit 735c75cf4d
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sound/pci/hda/patch_via.c
View File

@ -241,7 +241,9 @@ static int via_pin_power_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
ucontrol->value.enumerated.item[0] = codec->power_save_node;
struct via_spec *spec = codec->spec;
ucontrol->value.enumerated.item[0] = spec->gen.power_down_unused;
return 0;
}
@ -252,9 +254,9 @@ static int via_pin_power_ctl_put(struct snd_kcontrol *kcontrol,
struct via_spec *spec = codec->spec;
bool val = !!ucontrol->value.enumerated.item[0];
if (val == codec->power_save_node)
if (val == spec->gen.power_down_unused)
return 0;
codec->power_save_node = val;
/* codec->power_save_node = val; */ /* widget PM seems yet broken */
spec->gen.power_down_unused = val;
analog_low_current_mode(codec);
return 1;